Bearing/Gearing Section For A PDM Rotor/Stator
    4.
    发明申请
    Bearing/Gearing Section For A PDM Rotor/Stator 审中-公开
    PDM转子/定子的轴承/轴承部分

    公开(公告)号:US20140170011A1

    公开(公告)日:2014-06-19

    申请号:US14003299

    申请日:2012-03-08

    IPC分类号: E21B4/02

    摘要: A moving or progressive cavity motor or pump is disclosed, the motor including a rotor and a stator, the stator having one or more inserts or gearing sections to limit a lateral movement of the rotor relative to the stator. In some embodiments, the motor or pump may include a rotor and a stator, the stator including: a first, helicoidal, section comprising a compliant material having a first compressibility; a second section, helicoidal, non-helicoidal, or combination thereof, having a second compressibility, wherein the second compressibility is less than the first compressibility.

    摘要翻译: 公开了一种移动或渐进型腔马达或泵,所述马达包括转子和定子,所述定子具有一个或多个插入件或齿轮部分,以限制所述转子相对于所述定子的横向运动。 在一些实施例中,电动机或泵可以包括转子和定子,定子包括:第一螺旋形部分,包括具有第一可压缩性的顺应性材料; 具有第二可压缩性的第二部分,螺旋形,非螺旋形或其组合,其中第二压缩性小于第一可压缩性。